A cosporation of



sept, 1s, 1930.

G. lauELNAI summa Drgnal Filed'Max-ch 6, 1926 A? T-ro en/ex Reissued Sept. 16, 1930 UNITED STATES PATENT oFFl'cE GUADALUPE BUELNA, OF SANTA BARBARA, CALIFORNIA, SSIGNOR TO THOMPSON MANUFACTURING COMPANY, F LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA SPRINKLER Original No. 1,640,751, dated August 30, 1927, Serial No. 92,668, filed March G, 1926. Application for reissue filed August 24, 1929.

This invention relates to a device for sprinkling f'luids and it has particular reference to an irrigation sprinkler, the object of the invention being to provide a device by which portions of a definite area may be vsuccessively irrigated a determinate length of time, and in which the irrigation of successive portions of an area may be automatically controlled by the water passing through the sprinkler. l

Other objects will appear from the following specification in connection with the accompanying drawing which illustrates a preferred form of embodiment of the invention and in which:

Fig. 1 is a front view showing my invention attached to a source of water supply.

Fig. 2 is a sectional elevation, showing piston while moving downwardly.

Fig. 3 a plan section on line 3--3 Fig. 2.

Fig. 4 is a plan section on line 4-4 Fig. 2, and

F 5 is a fragmentary detail, showing the the normal and in dotted lines, the operative position of the sprinkler operating means.

The invention relates to that class of rotary sprinklers in which the rotation thereof is interrupted by periods of rest alternating with periods of movement, the latter being very short, but the former being relatively long as' hereinafter explained. Thereby successive portions of an area may be irrigated for a prolonged time, and after such prolongated irrigation the sprinkler arms are automatically moved so that the next adj oining portion of the area will be irrigated. In this wise a greater extent of area may be wetted, and a more thorough irrigation may be effected.

Broadly considered, the invention consists of a pipe connected with a source of water supply, a sprinkler' for dispersing the water, and a means operable by water pressure to move the sprinkler periodically relative to the water'supply pipe.

Specifically my invention is shown as comprising a stand pipe 1, threadedly associated with a water supply pipe 2 and formed with a conical seat 3 for a bearing 4, which is integrally united with and extended laterally Serial No, 388,219.

from the bottom of a cylindrical chamber 5, which is rotatable relatively to and about said stand pipe 1, as hereinafter more particularly detailed.

Fastened to the outside of said stand pipe 1 by set screws 6 or other desirable means, is an annular disk 7', provided in the upper face with indentations 8, and constituting substantially a ratchet. This disk 7 is spaced from the bearing 4 and between said disk and bearing is interposed an anti-friction means, as balls 9, for obvious purposes. Extending in a plane parallel, and integrally united, with said cylindrical chamber5 by a lateral bored extension 10 formed on and near the top of said chamber 5, 'is a fitting 11, interiorly threaded in the upper end thereof for the accommodation of a sprinkling member 12. The upper end of the stand pipe 1 is extended into the lower portion of said fitting 11, which has a smooth bore, and the lower end of said fitting 11 is exteriorly threaded for receiving a nut 13 by which a suitable packing material 14 is arranged to be compressed about the stand pipe 1 to prevent leakage. T he exterior diameter of the upper end of said stand pipe 1 is slightly reduced as shown at 15, to permit a small quantity of the water passing through the pipe 1 tov the sprinkler member to escape into and through the bore 10 of the lateral extension 10 and to pass into the cylindrical chamber 5, the quantity that is to pass being controlled by a valve 16, provided on said extension 10. As will be understood from the foregoing description, the cylindrical chamber 5, with the connected fitting 11, sprinkler member 12 and the laterally extending bearing 4, are rotatable relatively to the stationary stand pipe 1, and the ratchet mounted thereon. This cylindrical chamber 5 is arranged to be moved circularly about said stand pipe 1 with an intermittent motion by the means described as follows.

Cooperating with said ratchet 7 is a pawl 17 pivotally carried on one end of al shaft 18 which extends through and is guided by a boss 19 on the cylindrical chamber 5. On the other end of said shaft 18 is fastened by any suitable means, a finger 20 which is arl ou ranged to engage in a groove 21, provided therefor, in the end of an operating rod 21, which, as shown in Fig. 2, is connected at the top with a piston 22. For the greaterl part of its length, the operating rod 21 is hollow, and one end thereof extends entirely through the piston 22. The rod 21 is diametrically smaller than the piston 22, thereby providing a space A for a helical spring 23. This spring is disposed Within the piston`22, and between the upperend 24 thereof and a cap or plug 25 `which closes the bottomI ot the cylindrical chamber 5 and through which plug the operating rod 21 projects. ln the upper open end of the operating rod 21, which is connected with thek piston 22, as stated, isr inserted, by friction fit, a bushing 26, forming a guide for a tubular Valve housing y27, having an interior shoulder 28 against which is held normally pressed the, head 29 o a valve stem 3() by a spring 31, which in turn is held within the housing 27 by a screw 32, the head 32 of'which, being diametrically greater than the tubular valve housing 27, forms a seat :torv a spring 33, which is coiled aboutsaid housing between the bottom of said bushing 26 and said head 32. Nithin said operating rod 21 `is disposed a spring 21 which is in engagement with the head 32` on the end of the tubular housing 27, and which serves to move said tubular valve housing 27, upwardly during the yupward movement of the pistony 22, and to force the valve into its seat.

The said tubular housing 27 is formed with lateral projections 34 near the upper end thereof for the purposes appearing'presently. The upper end o the cylindrical chamber is threaded for the accommodation of a closing cap 36, which is provided with a central passageway 37 and is formed with a spray nozzle 37 through which water is exhausted as explained later.

valve seat 38 for the valve 30 on the end ot the valve' stem 30. This valve seat 38 is formed with a tubular extension 39 which acts as a guide for the valve `stem 30 and which, kas seen in Fig. 2 extends for a short distance into the upperA end of the valve housing 27, for which said tubular extension 39 also forms a guide. of the Valve seatBS is provided with ports 40 by which communication is established between the upper part of the cylindrical chamber 5 and the pasageway 37 in the cap, when the valve 30 is unseated, to discharge the water in the upper part of said cylindrica chamber. The seat 38 `is provided ,with a passageway 38 which coincides with the passageway 37 in the cap 36, for obvious reasons.

The cap 36 is provided on the underside thereof with depending resilient, spaced, prehensile members 41, which cooperatewith the projections 34, on the tubular valve housthe seat 38 and Inset in the bottom of said cap 35 is The tubular extension 39.

ing 27 to hold said housing normally inoperative for a determinable length of time during the movement of the piston 22, as. er;- plained in the description of the operation o1c the device.

Assuming the parts of the sprinkler to be in the positions shown in Fig.y 2' and that water is passing through the stand pipe 1 and discharging from the sprinkler member 12, it will be seen that the operating rod 21 is projected beyond the bottom of the cylindrical chamber. Movement of the operating rodoccurs when the piston 22 to which the rod is connected is impelled downwardly under the head of water accumulating in the top of the cylindrical chamber 5, the water for this purpose entering said chamber 5 through theport 10 in the extension 10, and the quantity of water so passing being regulated by the valve 16. During the descent or the piston 22 and operating rod- 21, the tubular valve housing 27 is also moved downwardly by the bushing 26, which is tightly fitted in the operating rod 21, and which engages the spring 33 around said tubular housing 27. The spring, by the downward movement of the operating rod 21, is compressed against the `head 32 of the screw in the end of the tubular valve housing 27, the movement of the tubular valve housing 27, is prevented by the prehensile spring iingers 41 vuntil thetension of these lingers against the lateral projection 34 is overcome by the continued `downward, movement ont the piston 22 and the pull of the bushing 26 against the compression spring 33. lVhen the tension of the resilient spring members 41 is iinally overcome, the valve housing 27 is suddenly pulled downwardly by the still descending piston and operating rod, and the valve 30 unseated, at the same time uncovering the ports 40 in the tubular extension of permitting the water in the top. of the cylindrical chamber to escape through the nozzle 37 on the cap 36. i

`When the tubular valve housing 27 has slipped engagement with the spring fingers.

41, the piston 22 and the operating rod 21 will have reached the limit of their downward movement. During such downward movement of the operating rod 21, the pawl 17, connected therewith through the medium of the shaft 18, and in engagement with one of the indentations S in the disk 7, will move the cylindrical chamber 5, the sprinkler member 12. and apurtenant parts, relative to the stand pipe 1, the distance of one indentation. So soon as the valve 30 has been unseated, the spring 23 will force the piston 22 upwardly, and the spring 21, also carried upwardly by the operating rod 21 and with the piston, will exert its compressive force against the head 32' of the tubular valve housing 27 and force the projections 34 thereon between and beyond the spring iinvgers 41, thereby resetting the valve housing and causing the valve to be seated. When the piston 22 and operating rod 21 have been returned to their normally inoperative position, the pawl 17 will be moved to the next indentation of the disk 7 In this wise the cylindrical chamber 5, with its sprinkling member 12, will be moved relatively to the stand pipe 1 continuously with an intermittent motion, the speed of such motion being determined by the quantity of water permitted to pass into the cylindrical chamber 5 from the stand pipe 1.

The period of rest of the chamber 5 is determined by the length of time required for the water to escape from the chamber tlrough the passageway 37 and the nozzle 3 lWhat I claim, is: n

1. A sprinkling device comprising a stand pipe, a ratchet secured thereto, a cylindrical chamber mounted on said stand pipe to rotate relatively thereto, a water sprinkling member connected with said chamber to move therewith, and having communication with said stand pipe, means to control the passage of water from said standpipe to said chamber, a rpiston operable by Water pressure Within said chamber, means associated with said pistonand engaging said ratchet continuously to rotate said chamber relatively to said stand pipe with an intermittent motion, and means to exhaust Ithe water from said chamber after each intermittentmotion thereof.

2. A sprinkling device comprising a stand pipe provided with a ratchet, a cylindrical chamber mounted on said stand pipe to rotate relatively thereto, a water sprinkling member connected with said chamber to move therewith and having communication with said stand pipe, means to control the passage of water from said stand pipe to said chamber, a piston within said chamber operable by the Water pressure therein, means associated with said piston and engaging said ratchet to move said chamber during the operation of said piston, means to exhaust the pressure water from said chamber, and means to return the piston to inoperative position.

3. A sprinkling device comprising a stand pipe provided with a ratchet, a chamber mounted on said stand pipe to rotate relatively thereto, said chamber communicating with stand pipe and having a water exhaust, a valve to control said exhaust, a piston within said chamber operable by water pressure therein, means connected with said piston to 'engage said ratchet and move said chamber' 1 with an intermittent motion, means operable by said piston to unseat said valve to cause the pressure water in said -chamber to exhaust, and means to return said piston to normal position.

4. A sprinkling device comprising a stand pipe provided with a ratchet, a chamber mounted on said stand pipe to rotate relatively thereto, said chamber having communication with said stand pipe, and provided with an exhaust, a valve to control said exhaust, a pawl arranged for engagement with said ratchet, a piston in said chamber to which said pawl is connected, said piston operable by water pressure in one direction to cause said pawl to move said chamber intermittently, means associated with said piston to unseat said valve when said chamber has been mo-ved, means to move said piston in another direction, and means to seat said valve.

5. A sprinkling device comprising a stand pipe provided with a ratchet, a cylindrical chamber mounted on said stand pipe to rotate relatively thereto, a Water sprinkling member connected with said chamber to move therewith and having communication With said stand pipe, means to control the passage of water from said stand pipe to saidy chamber, said chamber having a water exhaust therein, a, valve to control said water vexhaust, a rpawl in engagement with said ratchet, and means to operate said pawl to move said chamber relatively toy said stand pipe with an intermittent motion, comprising a piston in said cylinder operable in one direction by water pressure and in another direction by spring pressure and means to operate said exhaust valve relative to the movement of said chamber.

6. A sprinkling device comprising a water conveying pipe, a chamber associated withV said pipe and rotatable relatively thereto, said chamber having communication with said pipe, a reciprocating piston within said chamber and operable by a portion-of the water passing through said pipe, mutually engaging means on said pipe and piston to move said chamber automatically with an intermittent motion, and means to exhaust the Water from said chamber upon the return stroke of said piston.

'7. A sprinkling device comprising a stand pipe, a chamber associated with said stand pipe and rotatable relatively thereto, said chamber having communication with said stand pipe, a sprinkler member connected with said chamber to move therewith, a piston within said chamber and operable in one direction by water pressure, a connection between said stand pipe and piston whereby upon the movement of said piston by water pressure said chamber is automatically rotated intermittently, meansk to exhaust the water from said chamber, and means to move said piston in another direction.

8. A sprinkling'device comprising a stationary water conducting pipe, a chamber associated with said pipe to have movement relatively thereto, said chamber communieating with said pipe to receive a portion of the water flowing through said pipe, means 9. A sprinkling device comprising a stand i pipe:

a chamber mounted on said stand pipe to rotate relatively thereto, said chamber communicatiiig'with said stand pipe and having a water exhaust,a valveto,control said exhaust, a piston 1 within said chamberA operable by water pressure therein, ymutually engaging `means on said-piston and stand pipevto move said .chamber with an intermittent motion,

means to lunseatsaid valve tol cause the presf surewvater in said,` chamber to exhaust, and means to returnsaid piston to vnormal position.

10. A sprinkling. device comprising a pipe, a chamber associated and communicating with said pipe androtatable relatively there-v to, a sprinkler membe'nconnected withsaid chamber to move ,therewithA and having com# munication therewith, said chamber having y'an exhaust opening,.a piston within said chamber and operable;y by a portion of the Vwater passing through said pipe,v connections between said'. piston and pipev whereby said chamber is moved relatively to said pipe, and means operable bythe movementof said pis ton to open andy close saidexhaust opening.

11., A sprinkler -device comprising a `stationary stand pipe, a sprinkler member roe tatably mounted on said stand pipe, a cham,- ber having a liquid exhaust, means for continuously supplying liquid tosaidchamber from said stand pipe, a valve for closing said exhaust, a piston withinsaid chamber oper- 'able by liquidpressure therein, means operable by saidpistonfor causing said sprinkler member to rotate,-,andy means operableby said piston` to unseatsaidvalve to cause the water pressure in' said chamberto exhaust.

12. A sprinklerdevice comprising anstationary stand` pipe, aasprinkler member'rdy tatablymounted on said: stand pipe, mechanism whereby said sprinkler membermay be given ay rotational movement, a ychamber ar-r ranged to continuously yreceive water from said stand pipe, anl exhaust valve for closing fan exhaust port of Ysaid chamber, an operating member exposed to `the Water pressure in said chamber iand being operated thereby,

said'voperating member being connected to "said mechanism `for operatingsame, and being arranged to open said exhaustfport to permit watertoyflow from said chamber, and

Vsaid chamber movable "in, one

pipe, means on said its original` position'. n e

13. A sprinkler device comprising a staf tionary stand' pipe, 'asprinkler member romeans for moving said operatingmember to e an exhaust valve or closing an, exhaustport ofsaifd chamber, an operating memberexposed tothe water pressure in said chamber" and being 'moved as water accumulates in. said chamber, said `operating inem-1 ber being operatively connectedto said mechanism, opening means for openingsaid exhaustfvalveafter said operating member has been moved bys'aid water" in saidchamben i means for returning saidr operating member to its original position when. said exhaust valve is opened, thus exhausting the water vfrom said chamber, and'closing means for closing said exhaust valve as said operating member reaches its original` position.

14.rv A sprinklerdevice comprising a stati'onary stand pipe, a sprinkler member ro-v tatably mounted'thereoin'a chamber arranged to receive liquid under pressure from said stand pipe and having a liquid exhaust, a valve for closing said exhaust, a piston'in direction by liquidpassing 'into saidchamber, means dis# posed within said chamber and operated by said piston 'for unseating said valve for exhausting liquid from saidv chamber to permit said piston to move in the opposite direction, mechanical eans for moving A.said piston whensaid valveis unseated,"and means operable upon a movement of saidpiston torotate said sprinklery member.

15. Asprinkling device comprisinga stand pipe, a memberrotatable on said standpipe and having a' chamber in communication therewitli,`a water sprinkling member rotatable withsaid. rotatablemember and communicating with said chamber and said stand pipe, means to control "the passage of water trom said stand pipeto said chamber, a piston operable bywaterpressure within said chamber, means actuated Vsaid piston to rotate said rotatable memberwith an intermittentimotion, and meansv to 1 exhaust the wateri'rom ,saidA chamber after each interinittentmotion of' said rotatable member. 16' Asprinkling devicecomprising a water conveying pipea member rotatable rela-` tive to said pipe and having'a chamber communicating therewith, a vreciprocating piston within `said chamber and operable by a portion oi the water lpassing through said pipe and piston adapted for association to move said rotatable member automatically with an intermittent mo'- tion, and means to exhaust the water from said chamber.

17. sprinkling device ycomprising a stand pipe, a member rotatable on said pipe and having a chamber in communication with said pipe, a sprinkler member connected with said rotatable member to move therewith, a piston within said cylinder and operable in one direction by water pressure, means connecting said pipe and piston whereby upon the movement of said piston by water pressure said rotatable member is automatically rotated intermittently, means to exhaust the water from said chamber, and means to move said piston in anotherdirection.

18. A sprinkling device comprising a stand pipe, a member rotatable on said pipe and having a chamber in communication with said pipe, a sprinkler member connected with said rotatable member to move therewith, a piston within said chamber and operable in one direction by water pressure, means connecting said pipe and piston whereby Vupon the movement of said piston by water pressure said rotatable member is automatically rotated intermittently, means to exhaust the water from said chamber, and mechanical means to move said piston in another direction.

19. A sprinkler device comprising a stationary stand pipe, a member rotatable on said pipe and having a chamber communieating with said pipe so as to receive a liquid therefrom, said chamber having a liquid eX- haust, a sprinkler member connected to said rotatable member and being in communication with said pipe and chamber, a valve for closing said exhaust, a piston within said chamber operable by liquid pressure therein, means operable by said piston for causing said sprinkler member to intermittently rotate, and means to unseat said valve to cause the water pressure in said chamber to exhaust.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 17th day of August, 1929.

GUADALUPE BUELNA. 

